Ophthalmic mounting



May 2l, 1929. 1 N .NELSQN l l 1,713,546

OPHTHALMIC MOUNTING Filed Nov. 19, 1927 INVENTOR.'

ATTORNEYS.

Patented May 2l, 1929.

UNITED vSTATES PATENT OFFICE."

JOHN N. NELSON, 0F PROVIDENCE, RHODE ISLAND, 'ASSIGNOR TO UNIVERSAL OPTI- CAL CORPORATION, F IROVIDENCE, RHODE ISLAND, ACORPORATION OF RHODE ISLAND.

OPHTHALMIC MOUNTING.

Application ined November is, 1927. serialk No. 234,364.

This invention relates to'an improved construction of ophthalmic mounting; and has for vits object-Vtoprovide in such a mounting a pair of spaced metal eyewires connected by a bridge member, the bridge being substantially U-shape with its arms extending downwardly along the opposite eyewires and soldered thereto, the extremities of the bridge arms extending to a point adjacent the medial line thru said eyewires.

A further object of the invention is the notching ofthe adjacent surfaces of the oppo- Y site eyewires7 each' at a point adjacent the medial line thru the eyewires for the reception of the extremities of the downwardlyturned ends of the bridge member to assist in accurately locating the same and setting the ends substantially flush with the surface ofv the eyewires. j

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claim.

In the accompanying drawings:

Fig. 1 is a front view of an ophthalmic mounting having opposite eyewires connectf ed by my improved form of bridge member.

Fig. 2 is an edge view of the mounting.

Fig. 3 showsone of the eyewires notched on its periphery at a point adjacent the medial line thru the eyewires.

Fig. 4 is an edge view of the Wire showing the notch therein. Y

Fio. 5 is a view of the U-shaped bridge member having its downwardly-extending arms curved to conform tothe shape of the eyewires.

Fig. 6 is an enlarged yview showing the 40 bridge with one armshaped to conform to the curvature of the eyewires to provide an elongated soldering surfacewith the end of the bridge extending. into the notch in the eyewires.

Fig. 7 is a modification showing the ends of the bridge as extending down to the medial line of the eyewires.

Fig. 8 is a modification showing the ends of the bridge as extending down beyond the 5o medial line thru the eyewires. f

'Fig 9 is a sectional edge view of a fragmental portion of the eyewires.

Fig. 10 is a sectional end View of the -bridge y member.

Ashown being substantially V-shape It is found in the practical construction yof ophthalmic mountings of this charactery particularly where the eyewires are of preciousf metal, and are of that .class of mountingl which provided withtemples, to provide a bridge member Which is, relativelystif and non-yielding with `its downwardly-turned armscurved to conform tothe curvature' of the eyewires, of advantage to provide an elongated soldering surface and to provide notches in the-surface of thev eyewires to receive the ends of the bridge member for thc purpose of properly locating *the different parts and also to permit the ends of the bridge member to lie in a plane more i invention and showing certain constructions of bridge members whereby these advantageous results may be accomplished lVith reference to the'drawings, 10 designates the metal eyewires which ma be of any desired shape in cross section, t at herein in its outer contour, as best illustrated in Fig. 9, grooved on its inner surface as at 11 to receive the edge ofthe lens 12.

The peripheries of these eyewires where they are adjacent each other are preferablyv notched as at 13, to serve as locating points for the bridge member and also to permit the ends of the bridge member to lie more nearly flush with the surface of the eyewires. These notches are preferably formed adjacent a medial line thru the eyewires.

. The brid e member 14 is preferably o f substantially t e same shape in cross sectlon as that of the eyewires but is preferably made of solid stock andv this bridge member is made same together; also the extremities 17 of this Y bridge member are reduced so as to extend into the notches 13 in the eyewires'and lie substantially flush with the surface of the eyewires thus forming avery secure joint between the bridge and the eyewires. In some instances, the ends of the bridge may be slightly above the medial line thru the eye Wires, as illustrated in Fig. 1. In other instances, these bridge ends may extend to the medial line, as illustrated in Fig. 7, while in still other instances, as illustrated in Fig. 8, they may extend slightly below the medial line. Y

By my improved construction o ophthal- 1 mic mounting the eyewires are lirmly secured together by a substantially rigid bridge membei', the side arms of which also serve to support or reinforce the Aeyewires at the point where it is subjected to the greatestrstrains. The nose guard members '18 are preferably ,securedl to thev inner surfaces oi` the eyewires for supporting the frames on the nose and the temple members 19 may also be securedto these frames, if desired.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve thek privilegeof resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claim.

` I claim: Y

An ophthalmic mounting having a pair of spaced metal eyewires peripherally notched on their adjacent inner edges, said'notches extendingupwardly a short distance from a point adjacent the medial line thru the eyewires, a relatively stiff metal bridge member of substantially U-shape connecting said wires, thev arms of the U being curved to lie for a substantial. distance against and follow the curvature of the periphery of the eyewires beyond the upper end of the notch and be soldered thereto, the lower end of the curved portion oll each side arm being offset laterally from the natural curvature of the eyewires to extend into and be soldered in its engaged notch, and the ends of said arms being each reduced in thickness to lie in its notch. substantially flush with the eyewires.

In testimony whereof I aflix my signature.

vJOHN nnnLsoN. 

